[root@dev-ntp-server ~]# nslookup 10.182.200.100
Server: 10.182.211.82
Address: 10.182.211.82#53
100.200.182.10.in-addr.arpa name = dev-ntp-server.test.boccfc20.cn.
[root@dev-ntp-server ~]# nslookup dev-ntp-server.test.boccfc20.cn
Server: 10.182.211.82
Address: 10.182.211.82#53
Name: dev-ntp-server.test.boccfc20.cn
Address: 10.182.200.100
[root@dev-ntp-server ~]#